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添加全屏返回手势的支持 #579

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添加全屏返回手势的支持 #579

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17 changes: 17 additions & 0 deletions WMPageController/WMMenuView/WMScrollView+ScrollBack.h
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//
// WMScrollView+ScrollBack.h
// KXLive
//
// Created by 林祖涵 on 2018/11/29.
// Copyright © 2018 ibobei. All rights reserved.
//

#import "WMScrollView.h"

NS_ASSUME_NONNULL_BEGIN

@interface WMScrollView (ScrollBack)

@end

NS_ASSUME_NONNULL_END
32 changes: 32 additions & 0 deletions WMPageController/WMMenuView/WMScrollView+ScrollBack.m
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//
// WMScrollView+ScrollBack.m
// KXLive
//
// Created by 林祖涵 on 2018/11/29.
// Copyright © 2018 ibobei. All rights reserved.
//

#import "WMScrollView+ScrollBack.h"

@implementation WMScrollView (ScrollBack)

#pragma mark - <UIGestureRecognizerDelegate>

- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer
{
if ([gestureRecognizer isKindOfClass:[UIPanGestureRecognizer class]]) {
UIPanGestureRecognizer *tmpGesture = (UIPanGestureRecognizer *)gestureRecognizer;
CGPoint translation = [tmpGesture translationInView:tmpGesture.view];
/* 当scrollView滑到初始位置时，再滑动就让返回手势生效
* translation.x > 0 表示向右滑动 translation.x <= 0 表示向左滑动
*/
if (self.contentOffset.x <= 0
&& translation.x > 0) {
return NO;
}
}

return YES;
}

@end